Liquid-impelling device.



E. P HOLLY.

LIQUID IMPELLING DEVICE.

APPLICATION FILED JULY 5, 1912.

1,131,519. Patented Mar.9,1915.

Edjar F Holly awe/whoa:

THE NORRIS PETERS CO.. PhUI'O LITHOH WASHINGTUN, D C.

UllE STA arnivr oration.

EDGAR P. HOLLY, 011 BOSTON, MASSACHUSETTS, ASSIGNOR E0 HOLLY ENGINEERINGCOMPANY, OF NEV YORK, N. Y., A CORPURATION OF REIODE ISLAND.

Application filed July 5, 1912.

T 0 all whom it may concern Be it known that I, EDGAR P. HOLLY, acitizen of the United States, and resident of the city of Boston, in thecounty of Sufiolk and State of Massachusetts, have invented certain newand useful Improvements 1n Liquid-Impelling Devices, of which thefollowing is a specification.

This invention relates to liquid impelling devices, and has for itsobject to provide a device of this class with two sets of propellersmounted on and adapted to pull in opposite directions on a common shaftto balance the end thrust thereon, and to provide a partition betweensaid sets to divide the inflowing stream and prevent the opposingpropellers from pulling directly against each other on the stream.

A. further object of the invention is to provide an adjustabledeflecting blade in the inlet passageway for controlling the directionof the inflow so as to throw more or less of the liquid to either one ofthe sets of propellers so as to absolutely control the end thrust on theshaft. And a still further object is to provide one or more sets ofguide plates between or adjacent to each set of propellers to controlthe direction of and prevent a whirling motion to the liquid which isnaturally imparted thereto by the rotation of the driving propellers.

With these and other objects in View, the invention consists of certainnovel features of construction, as will be more fully described andparticularly pointed out in the appended claims.

()f the accompanying drawings: Figure 1 is a central sectional plan viewthrough the casing of my improved impelling device. Fig. 2 is a planview of the inlet passage way showing the lever by which the deflectingplate is adjusted and set in the desired position. Fig. 3 shows the endplate or cylinder head with guide plates mounted thereon. Fig. 4 is anenlarged end view of the ring which is mounted between the propellerssupporting the guide plates thereon. Fig. 5 is a section of the ringshowing the position of the guide plates mounted therein.

Referring to the drawings, my improved impelling device is composedessentially of a cylindrical casing 10 having a neck portion 11 forminga central inlet passageway 12. This casing is also provided on itsopposite Specification of Letters Patent.

LIQUID-IMPELLING DEVICE.

Patented Mar. 8), 1915.

Serial no. tomes.

side with a common discnarge chamber 13 having 'iassageways l l and 15leading therefrom toward and communicating with the cylinder near itsopposite ends through openings l6 and 17 respectively. The ends of thecylinder are provided with heads 18 and 19 each also forming bearingsfor a central longitudinally disposed driving shaft 20 mounted therein.Each of these heads are provided with a set of inwardly projecting guideplates 21 and 22 which prevent the fluid from the propellers, presentlydescribed, from taking on a whirling motion. By this construction offixing the plates to the heads said plates are also removed each timethe head is taken on", thereby permitting the propeller blades to bereadily gotten at for inspection or repairs.

Mounted on the shaft 20 in the cylindrical casin 10 are two independentsets of propellers 232-i and each set being located between the inletpassage 12 and its respective outlet passageway l6-17, said propellersbeing arranged to pull in opposite directions on the shaft 20 for thepurpose of balancing the end thrust thereon. Any desired number ofpropellers may be used in each set the propellers being graduated insize, growing larger toward the discharge opening. it set of guideplates 27 are connected to a ring 28 and located between the propellersto assist in guiding the fluid and prevent the same from whirling.

An essential feature of my improved invention is the provision of adividing plate c or partition 29 located between the two sets ofpropellers and extending from the inner wall of the cylinder outwardinto the inlet passageway 12, the same having its inner wall set on aneasy curve from the center wall toward the opposite sets of propellersto facilitate the easy entrance of the fluid thereto. This partitionalso serves to prevent the diferent sets of propellers from pullingagainst each other on the inflowing stream rendering the device muchmore efiective and efficient.

Another feature of my improved invention is the placing of a deflectingplate 30 in the inlet passageway and mounting the same on the transverseshaft 31, which shaft extends out through the wall of the passageway asillustrated in Fig. 3 and has an operating handle 32 connected theretothrough which a bolt 33 passes for the purpose of binding said handle inany desired position, whereby this deflecting blade may be set at anydesired angle so as to throw more or less fluid to either set ofpropellers so that the desired balance or pull on the shaft may bereadily obtained. In other words, this blade may be set at any angle todeflect the desired amount of fluid to either of the sets of propellersso that any unevenness in the pull of the different sets could beaccurately regulated and adjusted by simply throwing more or less of theinflowing fluid to one side or the other.

I claim:

1. A fluid inipelling device comprising a casing having central inletpassageway, and a common discharge chamber having passageways leadingtherefrom toward and communicating with said casing on either site ofsaid inlet, a driving shaft in said casing, two sets of propellers eachlocated on opposite sides of and between said supply opening and saiddischarge passageways and arranged to pull in opposite directions onsaid shaft, a stream dividing partition between said sets of propellers,and an ad justable deflecting blade in said inlet passageway.

2. A fluid impelling device comprising a casing having a central inletpassageway, and a common discharge chamber having passageways leadingtherefrom toward and communicating with said casing near its ends, adriving shaft in said casing, two sets of propellers each located onopposite sides of and between said supply opening and said dischargepassageways and arranged to pull in opposite directions on said shaft, astream dividing partition between said sets of propellers, and aplurality of guide plates adjacent each set of propellers.

A fluid impelling device comprising a casing having a central inletpassageway and a common discharge chamber having passageways leadingtherefrom toward and communicating with said casing near its ends, adriving shaft in said casing, two sets of propellers each located onopposite sides of and between said supply opening and said dischargepassageways and arranged to pull in opposite directions on said shaft, astream dividing partition between said sets of propellers, an adjustabledeflecting blade in said inlet passageway, and a plurality of guideplates adjacent each set of propellers.

l. A fluid impelling device comprlsing a casing having a central inletpassageway, discharge passageways on either side thereof, a drivingshaft in said casing, two sets of propellers each located on oppositesides of and between said supply opening and said discharge passagewaysand arranged to pull in opposite directions on said shaft, a streamdividing partition between said sets of propellers, said casing havingremovable heads, and blades on said heads extending into said dischargepassageways to prevent the fluid from whirling.

5. A fluid impelling device'comprising a casing having a central inletpassageway, a common discharge chamber having passageways leadingtherefrom toward and communicating with said casing on either side ofsaid inlet, a driving shaft in said casing, two sets of propellers eachlocated on opposite sides of and between said supply opening and saiddischarge passageways and arranged to pull in opposite directions onsaid shaft, and an adjustable deflecting blade in said inlet passageway,said casing having removable heads, and blades on said heads extendinginto said discharge passa geways to prevent the fluid from whirling.

In testimony whereof I afix my signature in presence 'of two witnesses.

EDGAR P. HOLLY.

Witnesses:

HOWARD E. BARLOW, HERBERT L. NEWTON.

Copies of this patent may be obtained for live cents each, by addressingthe Commissioner of Patents,

Washington, D. C."

